Truck-scale.



EDWIN L, GAGE, Ul TOLEDO, 01110.

TRC-SCALE Specification oi Letters Eatent.

Patented Sept. 15, 1908.

Application filed March 2, 12198. Serial No. 418,660.

To all 'whom it Imay concern:

Beit known that l, Eni-vin L. Geen, a citizen of the United States, and a resident of Toledo, in the county of Lucas and State. of Ohio, have invented a certain new and useful Truck-Scale; and l do hereby declare the following` to be a ful-l, clear, and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the saine, reference being had to the accompanying. drawings, and tothe figures of reference marked thereon, which forni a part of-this specification.

My invention relates to that class of scales which are combined witha movable base or truck and are equipped with ,means for effecting a raisins` or lowering of the bed or platform thereof to place it in operative' weighing position or to permit it to rest in inoperative position on the truck-frame, and has particular reference to improvements on the trilcl -scale covered by United States Letters Patent No. 836,074, granted to me on November 13, 1906.

The object of my invention is the provision of simple and efficient means in an apparatus of the classl described, which will act on the scale parts to automatically' elease the same to permit a lowering thereof to inoperative position when the truck is moved on its wheeled support, thus obviati-ng injury to the delicate weighing parts due to the raching they would be subjected to should the operator move the truck without first throwing` such parts to inoperative posi-tion.

A further object of my invention is the provision, in a truck-scale of this class, of means adapted to be nroved to lock the scale-beam against movement when the scale parts are thrown into inoperative position, thus addine; materially to the practicability and conrlnercial val-ue of apparatus of this class.

The operation, construction, and arrangement of the parts of the invention are fully described in the following,T specification, and illustrated in the accompanying drawings, in which,

Figure 1 is a plan of the truck-frame and scale embodying the features of my invention with the hed or platform removed. Fig. 2 is a vertical longitudinal section of the saine on the line fw w in Fig. 1 with the hed mounted thereon and elevated in weighing position, and Fig. 3 is a side view of the rear scaledever illustrating1 its rnanner of coa tion with the scalemeani.

Referring to the drawings, 1 designates the franie of an ordinary or any suitable construction of truck, which may either be of the hand or wagon types, as desired. At the rear end of the frame, or in any other suitable position therein, is disposed the scalelreanr 2, which is provided with the usual weigh-ts and is fulcruined in a suitable manner to the frame or to a bracket secured thereto, as at 3. v

Ll, 4 desiffnate tlshaped elevating-levers, the forward one of which has its legs pivoted to the frarnc sides, as at 5, while the rear lever has its .legs pivotcd to the franie sides, at t5. These levers have their legs directed toward each other and pivotally connecte- 1 at their ends to the ends of thc associa-ted arins of a forked operating-lever .7, as shown at 8. The operatingdcvei" has its arms fulcrunied to the fra-ine sides, as at 9, and its handle portion projecting rearwardly under the scale-beam, and preferably extended beyond the end of the frame, as shown, to adapt it to be readily grasped hy the operator when it is desired to move the saine to manipulate the elevating-levers l, el.

Suspended from a bracket 10 secured to the cross-piece 11 of the truck-frame is a pivetal dog 12, which preferably, but not necessarily, works through a slot in, the handle of the operating-lever 7 and is provided on its rear side with a tooth 13 for coactinpr with a portion 7 of said lever handle when elevated, whereby lo support thc lever in such elevated position. The dog 12 has its free and extended forward over the rca-r axle il of the truclr in position to he engaged by a cani 15 thereon as the axle rotates and nioved by such cani to release the operating-lover to permit it to drop by gravity to inoperative position, To facilitate a releasing of thc dog by the foot, if so desired, it is formed with .u downwardly projectingr spur 16, shown.

1? and 18 designate the usual scale-levers, which may be of any suitable construction and are pivotally suspended at their outer ends from the outer ends ofthe elevatinglevers 4i', Jl by loops 19, asV shown, and have their inner ends pivotally connected as by a loop 22() engaging suitable pivots thereon. A; simple and very ei'iieient manner of con? necting the outer end portions of the scalelevers to their respective elevating-levers, consists in providing the outer end of each elevatingdever near its sides with slightly spaced projections 4 with which the crossv ings. The main scale-lever 17 is provided at its inner end with the arm 23, which projects rearwardly therefrom and suitably connects at its outer end in proper position to the scale-beam 2, as at 23.

The scale-bed 24, which also forms the platform of the truck, has its under side providedwith four downwardly extending bearing-pieces 25, which have their lower surfaces suitably shaped to rest on the pivots 26 on the scale-levers. The pivots 26 prefer,

ably,v but not necessarily, connect at their opposite ends with spaced integral portions 274 of the scale-levers, as they are thereby materially strengthened. It will be apparent from the above description that a lowering of the operating-lever 7 from the position s hown will effect a lowering of the outer ends of the elevating-levers 4, 4 and the suspended scale-levers 17, 18, thus permitting a consequent lowering of the bed 24 to enable it to rest on and be supported by the truck-frame instead of by the scale-levers.

In order to provide a simple and ellicientmeans which is automatically operated to lock thesCaIe-beam in rigid A.position when the scale parts are thrown to inoperative position, I provide the rear scale-lever 18 at one side thereof with an arm 28, which projects rearwardly therefrom and under one end of the scale-beam, but free from contact therewith when the scale-levers are in operative weighing positions, so that the oscillatory movements of the scale-beam will not then be interfered with. As .the scale-ltwers lower when the weighing parts are thrown to inoperative position, the arm 28 lowers therewith and coacts with'a part of the scale-beam, suoli, for instance, as the subjacent weightbar 2 thereof, as shown in Fig. 3, thus moving such end ofthe scale-beam to its limit of lowering movement and firmly holding it against movement until again released by a raising of the scale parts.

I wish it understood that I do not desire to lbe restricted to the exact details of construcable to throw the scale partsinto operative or inoperative positions, of a member adapted to coperate with said lever to hold the same elevated to maintain the scale parts in operative position, and means for effecting an automatic release of said member from the o erating-lever when the truck is moved.

2. In a truck-scale, the combination with the scale-parts, and means movable to effect a throwing of the sealearts to operative or inoperative ositions, o a member adapted to coact wit 1 said means when holding the scale-parts in inoperative position, and cam meanscoacting with said member and movable to effect its release from said first mentioned means when the truck is moved.

3. In a truck-scale, the combination with the scale-parts, an axle of the truck, and a lever associated with the scale-parts and adapted when elevated to move said parts to operative position and when lowered to move said parts to inoperative position, of a dog carried by the truck-frame and adapted to engage the lever when elevated and retain it in such position, and cam means carried by the axle and adapted to coact with the dog to release it from the lever when the truck is moved.

4. Ina truck-scale, the combination with the scale-beam, and the scale-levers, said levers being movable to operative and inoperative positions, ofa part projecting from one of said levers and adapted to coact with the scale-beam to prevent movement thereofA when the levers are ininoperative positions.

5. In a truck-scale, the combination with the frame, of two U-shaped elevating-levers having their legs directed toward each other and fulcrumcd to the frame-sides, said levers being rovided at their outer ends near the sides t iereoll with. slightly spaced projections adapted to l'orm loop-supports, an operatinglever i'ulrrumed to the frame and having an arm in connection. with the elevating-lever legs at each side of the frame, scale-levers having their inner ends pivotally connected and their outer ends provided near the sides thereof with paced projections connected by pivots, and loops connecting the sets of spaced projections of .the elevating-levers with the pivots connecting the spaced projections of the scale-leviers, substantially as described.

I n testimony whereof I have hereunto signed my name to this specification in the presence ol" two subscribing witnesses.

IIDVVIN lr. GAGE.

Witnesses:

Parier C. Snconn, (l. C. GIBSON.

llt 

